Weaknesses of type CWE-416

5,126 results

Uso após liberação de memória

Ocorre quando o código tenta acessar um bloco de memória que já foi desalocado (free/delete). O ponteiro continua apontando para aquele endereço, mas o dado ali pode ter sido sobrescrito por outra operação, causando comportamento impredizível, corrupção de dados ou execução de código arbitrário.

Example

Um buffer é alocado, depois liberado com free(). Mais adiante, o código ainda tenta ler ou escrever naquele mesmo ponteiro sem verificar. Se um atacante controlar a alocação subsequente daquele endereço, consegue manipular o conteúdo que será lido.

How to mitigate

Anule o ponteiro imediatamente após liberar (ptr = NULL), implemente análise estática para detectar acessos pós-liberação, use ferramentas como valgrind ou AddressSanitizer nos testes, e considere linguagens com gerenciamento automático de memória para código sensível.

CVE-2026-40467MEDIUMUse after free in gawkEPSS 0.3%CVE-2026-40701MEDIUMNGINX ngx_http_ssl_module vulnerabilityEPSS 0.3%CVE-2023-50196HIGHTrimble SketchUp Viewer SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2025-54092HIGHWindows Hyper-V Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-0908HIGHUse after free in ANGLE in Google Chrome prior to 144.0.7559.59 allowed a remote attacker to potentially exploit heap corruption via a craftEPSS 0.3%CVE-2022-49111HIGHBluetooth: Fix use after free in hci_send_aclEPSS 0.3%CVE-2021-21088HIGHAdobe Acrobat Pro DC Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2025-54257HIGHAcrobat Reader | Use After Free (CWE-416)EPSS 0.3%CVE-2025-0762HIGHUse after free in DevTools in Google Chrome prior to 132.0.6834.159 allowed a remote attacker to potentially exploit heap corruption via a cEPSS 0.3%CVE-2024-3170HIGHUse after free in WebRTC in Google Chrome prior to 121.0.6167.85 allowed a remote attacker to potentially exploit heap corruption via a crafEPSS 0.3%CVE-2024-3169HIGHUse after free in V8 in Google Chrome prior to 121.0.6167.139 allowed a remote attacker to potentially exploit heap corruption via a craftedEPSS 0.3%CVE-2026-9891CRITICALUse after free in Extensions in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to EPSS 0.3%CVE-2024-3168HIGHUse after free in DevTools in Google Chrome prior to 122.0.6261.57 allowed a remote attacker to potentially exploit heap corruption via a crEPSS 0.3%CVE-2023-38211HIGHZDI-CAN-21078: Adobe Dimension GLB File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.3%CVE-2022-46311HIGHThe contacts component has a free (undefined) provider vulnerability. Successful exploitation of this vulnerability may affect data integritEPSS 0.3%CVE-2025-55157MEDIUMVim heap use-after-free vulnerability when processing recursive tuple data typesEPSS 0.3%CVE-2026-10901HIGHUse after free in Passwords in Google Chrome on Mac prior to 149.0.7827.53 allowed a remote attacker who convinced a user to engage in speciEPSS 0.3%CVE-2026-43746MEDIUMA use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, EPSS 0.3%CVE-2026-69576HIGHGraphic Fonts Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-92023HIGHUse-after-free in the XML componentEPSS 0.3%